Features - Sferalabs Iono Pi Max v2 3+ Lite User Manual

Features

Iono Pi Max, all versions:
✓ 10-50Vdc power supply, with surge and reverse polarity protection, and 3.3A resettable
fuse
✓ integrated uninterruptible power supply (UPS), with external lead-acid 12V or 24V
battery (with reverse polarity, surge and over-current protection)
✓ software-controlled auxiliary 12-24Vdc stabilised supply output, to power external
devices through Iono Pi Max UPS (with reverse current and surge protection)
✓ software-controlled auxiliary 5Vdc stabilised supply output
✓ voltage and current monitoring of power supply input, battery and auxiliary supply
output
✓ highly accurate real time clock with temperature compensated crystal oscillator (TCXO)
and replaceable CR1220 Lithium / Manganese Dioxide back-up battery
✓ standard RS-232 interface to the Raspberry Pi serial line, up to 115.200 bps
✓ standard RS-485 interface, routed to the Raspberry Pi serial line or USB, with opto-
isolator and electrostatic discharge protection, up to 115.200 bps
✓ Controller Area Network (CAN) V2.0B and CAN-FD interface, support speeds up to 8
Mb/s, with opto-isolator and electrostatic discharge protection
✓ 5V-level, protected, I2C expansion bus
✓ 4 power relay outputs rated for 6A at 250V, with NO and NC contacts
✓ 4 open-collector outputs
✓ 2 0-10V or 0-20mA analog outputs
✓ 4 analog voltage inputs 0-20V
✓ 4 analog current inputs 0-20mA
✓ 2 Pt100 or Pt1000 temperature sensor inputs
✓ 4 digital input lines
✓ 4 digital 5V-level I/O lines, with 1-Wire and Wiegand support
✓ 10/100 Ethernet port
✓ two USB 2.0 type-A ports, with individual power control and fault detection
✓ one internal USB 2.0 type-A port, to embed USB dongles inside the enclosure
✓ dual microSD card architecture. Iono Pi Max routes its two microSD card holders to the
Compute Module through a high-speed switching matrix, controlled by the on-board
microcontroller. Each SD card can be set as the boot card, with the other available as
additional storage. This enables for separate OS/data storage, SD redundancy and in-
field full-system upgrades. The microSD slots are hidden, and can be accessed
opening the case
✓ hardware watchdog implemented in the Iono Pi Max microcontroller, fully independent
from the Raspberry Pi Compute Module, controlled via the GPIO pins of the Raspberry
Pi board and acting on the Raspberry Pi Compute Module hardware reset line. The
10 Iono Pi Max User Guide